NIOBIUM BROMIDE
- Product Name
- NIOBIUM BROMIDE
- CAS No.
- 13478-45-0
- Chemical Name
- NIOBIUM BROMIDE
- Synonyms
- NbBr5;99.9%Nb;NIOBIUM BROMIDE;Einecs 236-778-5;NIOBIUM (V) BROMIDE;NIOBIUM PENTABROMIDE;niobiumbromide(nbbr5);Niobium(V)pentabromide;Niobium bromide (NbBr5);NIOBIUM(V) BROMIDE 98%
- CBNumber
- CB8102807
- Molecular Formula
- Br5Nb
- Formula Weight
- 492.43
- MOL File
- 13478-45-0.mol
NIOBIUM BROMIDE Property
- Melting point:
- 150°C
- Boiling point:
- 361,6°C
- Density
- 4.360
- solubility
- soluble in H2O, ethanol
- form
- Powder
- color
- reddish-brown
- Water Solubility
- soluble H2O, alcohol, ethyl bromide [KIR81]
- Sensitive
- moisture sensitive
- EPA Substance Registry System
- Niobium bromide (NbBr5) (13478-45-0)
Safety
- Hazard Codes
- C
- Risk Statements
- 20/21/22-34
- Safety Statements
- 26-27-28-36/37/39-45
- RIDADR
- UN 3260 8/PG 2
- WGK Germany
- 3
- HazardClass
- 8
- PackingGroup
- III
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H302Harmful if swallowed
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H332Harmful if inhaled
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310Immediately call a POISON CENTER or doctor/physician.
P312Call a POISON CENTER or doctor/physician if you feel unwell.
P321Specific treatment (see … on this label).
P322Specific measures (see …on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- 93-4107
- Product name
- Niobium(V) bromide (99.9%-Nb)
- Packaging
- 10g
- Price
- $129
- Updated
- 2023/01/06
- Product number
- 93-4107
- Product name
- Niobium(V) bromide (99.9%-Nb)
- Packaging
- 50g
- Price
- $515
- Updated
- 2023/01/06
NIOBIUM BROMIDE Chemical Properties,Usage,Production
Chemical Properties
yellow powder(s) or red crystals; ortho-rhomb, a=0.6127nm, b=1.2198 nm, c=1.855 nm; m.p. 265.2°C, b.p. 361.6°C; sensitive to moisture; can be formed by reacting Br2 and niobium at ~500°C [STR93] [KIR81]
Synthesis
(1) First, the air is completely removed from the reactor. Then,
the section of the tube containing the metal is heated by a coil wound directly on the reactor, or by a tubular electric furnace o.
If Nb powder is used, then bromide formation begins at 90°C; with
solid Nb, it starts at 195°C . The nascent bromide
sublimes onto cold finger /. When larger quantities are desired,
large-diameter receiver a is attachedtotheendof the reactor. The
extremely hygroscopic bromide should be removed from the
apparatus while the latter is in a dry box.
Nb + 5/2Br2 = NbBr5.
(2) In the method of Chaigneau, the mixture of pentoxide and AlBr3,
in proportions indicated by the above equation, is sealed under
vacuum into a Pyrex glass tube (before use, the AlBr3 is purified
by vacuum sublimation). The tube is heated for 24 hours at 200°C,
and allowed to cool; the small amounts of Br 3 formed in the process
and residual AlBr3 are vacuum-sublimed at 140°C. The pure
pentahalide is then separated from the Al 3O3 by vacuum sublimation
at 240°C, yielding large crystals.
3 Nb2O5 + 10AlBr3 = 6 NbBr5 + 5A12O
(3) Nb2O5 + 3 C + 6 Br2 = 2 NbBr5 + COBr2 + 2 CO2
NIOBIUM BROMIDE Preparation Products And Raw materials
Raw materials
Preparation Products
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